What was found
APU FAILURE, RTFL. REPLACED RELAYS K176 AND K547. ALSO REPLACED APU DOOR ACTUATOR AND OPERATED APU BEFORE AND AFTER DOOR ACTUATOR REPLACEMENT AND 6 SUCCESSFUL STARTS ACCOMPLISHED.
- Difficulty date
- July 14, 2009
- Submitted
- July 16, 2009
- Operation
- Air carrier
- Aircraft
- N661UA
- Make and model
- Boeing 767322
- Aircraft serial
- 27158
- Aircraft time
- 69,451 hours, 11,373 cycles
- Engine
- Pwa PW4060
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Relay
- Condition
- Failed
- Location
- Apu
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.